Electricity: electrical systems and devices – Safety and protection of systems and devices – Impedance insertion
Patent
1981-01-26
1984-05-22
Salce, Patrick R.
Electricity: electrical systems and devices
Safety and protection of systems and devices
Impedance insertion
361106, 361 94, 338 22R, 338 20, 219212, 219505, H02H 308, H02H 306
Patent
active
044504969
ABSTRACT:
A PTC device is used to protect a power circuit from excessive heat and/or excessive current in an electrical system which comprises a separate control circuit as well as the power circuit. The PTC device is in one of said circuits and is thermally coupled to a resistive element in the other of said circuits. A preferred means for thermally coupling these two components is a metal strap which at least partially encircles the resistive element and extends over at least a portion of the surface of the PTC device.
REFERENCES:
patent: 2978665 (1961-04-01), Vernet et al.
patent: 3209206 (1965-09-01), Courtin
patent: 3213328 (1965-10-01), Ryckman, Jr.
patent: 3241026 (1966-03-01), Andrich
patent: 3243753 (1966-03-01), Kohler
patent: 3280373 (1966-10-01), Dabinett
patent: 3396265 (1968-08-01), Jacobson
patent: 3418454 (1968-12-01), Ryckman, Jr.
patent: 3434089 (1969-03-01), Waseleski, Jr. et al.
patent: 3437792 (1969-04-01), Lauck
patent: 3444399 (1969-05-01), Jones
patent: 3489883 (1970-01-01), McKinley
patent: 3544869 (1970-12-01), Plouffe et al.
patent: 3614345 (1971-10-01), Quinn
patent: 3667026 (1972-05-01), Bogut et al.
patent: 3745369 (1973-07-01), Yamagata
patent: 3814899 (1974-06-01), Gordon, Jr. et al.
patent: 3828292 (1974-08-01), Grossman et al.
patent: 3846674 (1974-11-01), McNulty
patent: 3872418 (1975-03-01), Plough et al.
patent: 3916264 (1975-10-01), Berg
patent: 3965392 (1976-06-01), Moorhead et al.
patent: 3979708 (1976-09-01), Thompson
patent: 4019097 (1977-04-01), Miller et al.
patent: 4101862 (1978-07-01), Takagi et al.
patent: 4132863 (1979-01-01), Smith
patent: 4198562 (1980-04-01), Mills et al.
patent: 4238812 (1980-12-01), Middleman et al.
patent: 4278874 (1981-07-01), Cole
"The PTC Resistor" by Robert Blaha, Texas Instruments Inc., Proc. Electronic Components Conference, 1971.
Doljack Frank A.
Middleman Lee M.
Raychem Corporation
Salce Patrick R.
LandOfFree
Protection of certain electrical systems by use of PTC device does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Protection of certain electrical systems by use of PTC device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Protection of certain electrical systems by use of PTC device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1481539